oct. », 1917 Indirect Effects of Selections in Breeding Indian Corn 117 
of number of rows of kernels has been invariably maintained throughout 
11 years, except the years 1913 and 1915, when the low-oil changed 
Pig. 3.—Graphs showing the mean weight o! the ears in the four Illinois strains of Indian com for n crops, 
1905-1915- 
Fig. 4.—Graphs showing the mean number of rows of kernels in the four Illinois strains of Indian com 
for 11 crops, i 9 os-i 9 * 5 - 
places with the high-protein strain. The differences, however, are in¬ 
significant in these years. As the character (rows of kernels) is deter- 
